Stop-motion for combs



'0. E. JEWETT AND F. FITZGERALD.

. STOP MOTION FOR COMBS.

APPLICATION FILED FEB. 2, 1920. 1,381,467. Patented June 14, 1921.

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UNITED STATES CHARLES E. JEWETT,'0F NORTH To all whom it may 'concermflBe it known that we, CHARLES E. Jnwnr'r and F RED FITZGERALD, bothcitizens of the United States, residing at North Andover and Lawrence,in the county of Essex and State of Massachusetts, have invented certainnew and useful Improvements in Stop- Motions for Combs, of which thefollowing is a specification.

This invention relates to stop-motions for worsted combs, particularlyfor those of the circular type. Its especial application is inconnection with, or in addition to, stop-motion for combs described inLetters Patent to Charles E. Jewett and Fred Fitzgerald, April 1, 1919,No. 1,299,187.

The purposes of the above named patent were to stop the comb when eitherthe sliver or an apron should break.

The present invention is for the purpose of stopping the comb wheneverthe belt which drives the revolving trumpet breaks. In the drawings,Figure 1 is an elevation of the parts of a worsted comb with which mydevice cooperates. In such combs, the trumpet is generally not parallelwith the main driving shaft and the shipper, but it is so shown in thedrawing for convenience. Fig. 2 is a detail elevation of the finger andarm.

Fig. 3 is a detail elevation of one contact member. 7

Fig. 4 is a detail elevation of a modified construction which may beused with the contact member shown in Fig. 3, or any other suitablecontact member.

Fig. 5 is a detail elevation as from the left of Fig. 1, partly insection, showing my preferred form of contact member and weight. v V g 7As described in the above mentioned patent, the roving, a section ofwhich is shown at R, Fig. 1, passes around a faller wire or 36, outthrough the trumpet T through end 15, and emerges at 16.

"The trumpet T is revoluble in a suitable casing F having the parts 13and 14 which serve as a bearing therefor. The pulley 12 is fixed to thetrumpet and is driven by means of a belt D which passes over a pulleysuch as is shown at E and which may be carried by the main driving shaft60.

As shown, this shaft 60 carries loose pulley 61 and fast pulley 62 forthe main driving belt 64. This belt can be shifted from form ofSpecification of Letters Patent.

PATENT OFFICE.

ANDOVER, AND FRED FITZGERALD, OF LAWRENCE, MASSACHUSETTS.

STOP-MOTION FOR COMES.

Patented June 14, 1921.

Application filed February 2, 1920. Serial No. 355,541.

one pulley to another by means of a fork 63 carried by a shipper rod Hhaving a handle 7, the loose pulley and shipper being part of the combstopping means.

The faller wires 35 and 36 are pivoted on each side 'of frame F and eachis fixed to a finger, such as 30, which has a nose 31 and a slot 32through which passes a pin 33 into frame F. Each pin 33 thus serves as apivot for a finger and a faller wire. WVhen not held back by the roving,the faller will drop forward to the position shown at 35, carrylng withit its finger 30.

Cut into trumpet T or attached thereto is a worm 20 which engages a wormgear 21 carried by a shaft 22 in frame F. This shaft 22 carries at eachend one or more tappet cams 23 in such position that when a faller wiredrops forward, the nose 31 of its corresponding finger will drop intothe path of a cam 23 and will be lifted thereby as the cam rotates withthe trumpet T.

The shipper H is the means for starting and stopping the comb by hand orotherwise, and L is the means shown as an actuator to so operate theshipper as to stop the comb when trigger mechanism, shown at 51, doesnot hold such comb stopping means out of action. This actuator L,operated by a spring, as shown, together with the shipper H and loosepulley, comprise together the comb stopping means. This mechanism may beof any desired type, one type being fully shown and described in PatentNo. 1,299, 187 above mentioned.

K is a connecting rod which at'48 is attached to trigger mechanism 51and is adapted to be so moved as to release suchtrigger mechanism fromthe comb stopping mechanism when pushed upward. It is shown as includinga fork M having legs such as 40 and as sliding in groove such as 17 inframe F, and as being connected with fork M by a joint 44.

Our invention comprises the rocker arm A pivoted at 71 to cars 70, fixedto and extending upward from the part 14 of frame F, having a relativelylong shank 75 and a finger 72 which is adapted to engage a nose 73 onconnecting rod K.

Near the free end of rocker arm A is a contact member which is adaptedto rest against the trumpet belt D in such position that the rocker armwill be just beyond a dead center, When the belt D breaks, the

weight of the contact member and shank of arm A will cause the long endto drop, raising finger 72 and nose 73 whereby the trigger mechanism isreleased, permitting the comb stopping mechanism to operate the shipperand stop the comb, as see dotted lines in Fig. 1.

This contact member, as shown in Fig. 3,

. may be merely a bend 7 6 of arm A, but we prefer to use a contactplate B of curved form, as shown in Figs. 1 and 5. This contact plate Bis supported by a boss 83 through which passes a screw rod 82, which isscrewed into a counterweight 'S slidable on shank 7 5 of rod A. lVeightS can be adjustably secured on shank by means of set screw 81, and plateB can be adjustably secured on rod 82 by means of a set screw 84:.

It is apparent that where the rocking member is set, as shown in Fig. 1,substantially leaning against the trumpet belt D, when such belt breaks,its weighted end will swing in the arc of a circle, gaining in momentumas it drops, thus forcibly lifting the connecting rod K and operatingthe mechanism to stop the comb. Preferably we use an adjustable stop 74,shown as a screw, to limit the movement of the rocking member away fromthe belt. I

As shown in Fig. 4:, instead of using the counterweight, such as S, wemay use a spring 92 between an eye 91 on an ear 70 and an eye 90 on armA.

We claimi 1. In a comb having a movable shipper for starting andstopping, a revoluble trumpet guide, a belt for revolving said trumpetguide while the comb is running, means adapted to so operate the shipperas to stop the comb, trigger mechanism to hold such shipper operatingmeans out of action, and a connecting rod adapted to be so moved as torelease the trigger mechanism from the shipper operating means, thecombination of a nose fixed to said connecting rod, a pivoted rocker armhaving a finger adapted to engage said nose, a contact member includingan adjustable contact plate and an adjustable counterweight carried bythe free end of the rocker arm in such position that when it restsagainst said belt, the finger and nose are out of engagement but whenthe belt breaks, the contact member and rocker arm so move that thefinger engages the nose and so moves the connecting rod as to disengagethe trigger mechanism from the shipper operating means, thereby allowingthe shipper to stop the comb.

2. In a comb having a movable shipper for starting and stopping, arevoluble trumpet guide, a belt for revolving said trumpet guide whilethe comb is running, means adapted to so operate the shipper as to stopthe comb, trigger mechanism to hold such shipper operating means out ofaction, and a connecting rod adapted to be so moved as to release thetrigger mechanism from the shipper operating means, the combination of anose fixed to said connecting rod, a pivoted rocker arm having a fingeradapted to 7 engage said nose, a contact member carried by the free endof the rocker arm in such position that when it rests against said belt,the finger and nose are out of engagement but when the belt breaks, thecontact mem- 7. ber and rocker arm so move that the finger engages thenose and so moves the connecting rod as to disengage the trigger mechanism from the shipper operating means, thereby allowing the shipper tostop the comb.

3; In a comb having stopping means, trigger mechanism to hold suchstopping means out of action, a revoluble trumpet guide, a belt forrevolving said trumpet guide, and a connecting rod attached to thetrigger mechanism, the combination of a'nose fixed to said connectingrod, a rocker arm having a finger adapted to engage said nose, and acontact member carried by the free end of the rocker arm in position torest against said belt.

4. In a comb having stopping means, trigger mechanism tohold suchstopping means out of action, a belt, and a connecting rod attached tothe trigger mechanism, the combination of a nose fixed to saidconnecting rod, a rocker arm having a finger adapted to engage saidnose, and a contact member carried by the free end of the rocker arm inposition to rest against said belt.

In testimony whereof we have affixed our signatures.

CHARLES E. JEWETT.

FRED FITZGERALD

